本文实例讲述了smarty中改进truncate使其支持中文的方法。分享给大家供大家参考,具体如下:
smarty的truncate不支持中文的截取。将smarty目录下plugins中的modifier.truncate.php改成下面这个样子就可以了
<?php
/*
* Smarty plugin
* -------------------------------------------------------------
* Type: modifier
* Name: truncate
* Purpose: Truncate a string to a certain length if necessary,
* optionally splitting in the middle of a word, and
* appending the $etc string.
* Update: change substr to msubstr and add fun msubstr.so it
* can bu used in chinese charset.
* -------------------------------------------------------------
*/
function smarty_modifier_truncate($string, $length = 80, $etc = '...', $break_words = false)
{
if ($length == 0)
return '';
if (strlen($string) > $length) {
$length -= strlen($etc);
if (!$break_words)
$string = preg_replace('//s+?(/S+)?$/', '', SubstrGB($string, 0, $length+1));
return SubstrGB($string, 0, $length).$etc;
} else
return $string;
}
function SubstrGB($str,$start,$len){
for($i=0;$i<$start+$len;$i++){
$tmpstr=(ord($str[$i])>=161 && ord($str[$i])<=254&& ord($str[$i+1])>=161 && ord($str[$i+1])<=254)?$str[$i].$str[++$i]:$tmpstr=$str[$i];
if ($i>=$start&&$i<($start+$len))$tmp .=$tmpstr;
}
return $tmp;
}
/* vim: set expandtab: */
?>
希望本文所述对大家基于smarty模板的PHP程序设计有所帮助。